Help to describe composition of these microestructures 1

[helier20]

1.)

microestructure of a 1018 steel. water quenched. nital 2% etch during 5 seconds, 100X.


2.)
A)

microestructure of a 1018 steel. oil quenched. using nital 5% etch during 5 seconds, 100X.

B)

microestructure of a 1018 steel. oil quenched. using nital 5% etch during 5 seconds, 10X. (use zoom to watch better)

3.)

microestructure of a 1018 steel. brine quenched. picral 4% etch during 5 seconds, 100X.

 

[redpicker]

As a general description, I would say overexposed with too little contrast.

How are you taking these pictures? They look as if they were taken with a phone through the eyepiece of a microscope.

What are you trying to accomplish? How you describe the microstructure depends on what you are trying to illustrate.

 

[replica]

Look like low carbon lath martensite to me....

 

[replica]

Of course with 0.18%C